Deploying Unity app with AWS doesn't work on Hololens 2

Sergio Pinto 5 Reputation points
2024-02-29T13:15:03.5066667+00:00

I am developing an app, using Unity 2021.3.14, for the Hololens 2. It has authentication features in it, using the Amazon AWS libraries. I managed to make it work in Unity Editor, I get the token response for successful authentication, but only when pressing the Play button in the editor. When I build the app for Hololens, I don't get any errors, but when I deploy the solution on the Hololens, the token isn't showing, meaning that the authentication failed. I have tried to debug it, but the only "error" it shows in Visual Studio is this one: Exception thrown at 0x00007FFF889178C0 in HoloTest.exe: Microsoft C++ exception: Il2CppExceptionWrapper at memory location 0x0000008C582FAE20. I've been trying to figure it out, but I can't seem to fix it. What can I be doing wrong? EDIT: I did copy the dll's into a plugins folder inside the assets folder in Unity

HoloLens Development
HoloLens Development
HoloLens: A family of Microsoft self-contained, holographic devices that enable engagement with digital content and interaction with holograms in the surrounding environment.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. Sergio Pinto 5 Reputation points
    2024-03-01T14:57:57.0633333+00:00

    I managed to randomly fix it. I had already selected the internetClient capability in the Publishing Settings, but for some reason, apparently it didn't got added to the Package.appxmanifest in the builds folder.

    I just added a new line in there with the internetClient capability, and it started working!

    1 person found this answer helpful.
  2. Ying Li - MSFT 725 Reputation points Microsoft Vendor
    2024-03-01T08:02:38.5566667+00:00

    Hello, Welcome to Microsoft Q&A,

    There isn't enough information to go on to tell what is going on exactly. You mentioned that it worked in the Unity Editor. I assume that there may be some steps missed out to cause code stripping when using AWS SDK with IL2CPP build. I am not familiar with AWS SDK. I recommend you check AWS SDK developer Guide documents for information on using IL2CPP to build the Unity project with AWS SDK.

    A managed stack trace could help you understand the cause of this exception. To find the player log file, please navigate to Device Portal->System->File explorer->LocalAppData->[ProjectName]->TempState->UnityPlayer.log.

    If the response is helpful, please click "Accept Answer" and upvote it.

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